| abstract |
Compounds of the formula I <IMAGE> in which Py represents an optionally substituted 4-or 5-pyrimidinyl radical bonded via a carbon atom to the nitrogen atom, R1 and R2 independently of one another represent hydrogen, lower alkyl or lower alkenyl, and Alk represents lower alkylene which separates the two nitrogen atoms by 2 to 4 carbon atoms, their tautomeric compounds and salts, exhibit hypotensive and antihypertensive effects.n[EP0019811A1] |